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The Amelican aka a Gulf and a Pterodactyl, Przemysław Majewski & teleskopy.pl
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The Amelican aka a Gulf and a Pterodactyl

The Amelican aka a Gulf and a Pterodactyl, Przemysław Majewski & teleskopy.pl
Powered byPixInsight

The Amelican aka a Gulf and a Pterodactyl

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Description

There are issues with the ASI294MM/MC sensors which produce weird patterns on the sensor when imaging certain wavelengths near the infrared.

What came out during my funny test, which resulted in this Amelican picture was that:

1) There isn't any pattern on the flat/light frames with the OIII filter,

2) There is a pattern in Ha,

3) There is an even bigger pattern in SII.

That leads me to the hypothesis that the sensor works unevenly for near infrared wavelengths. Ofc proper calibration with flats will rid you of this issue in the same a good dark will take care of amp glow which is severe in the 294's

I hope this helps! Do you like my test's outcome?

CS

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The Amelican aka a Gulf and a Pterodactyl, Przemysław Majewski & teleskopy.pl

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